Now live on Chrome & Firefox

The internet's
trust layer.

Real-time trust scores on every website. Scam detection, phishing alerts, and safer shopping — powered by 1.1 Million+ verified domains across 177 countries. Free forever.

Add to Chrome — Free Add to Firefox — Free →
1.1 Million+
Verified domains
177
Countries covered
53
Threat categories
63
Marketplaces
Our Mission

Built to protect people.
Not to profit from them.

Online fraud is up 87% in five years. Over $10 billion is lost every year to scams, phishing, and fraud. We built Nudge because everyone deserves to browse, shop, and live online without fear — not just people with a cybersecurity degree.

87%
Fraud increase in 5 years
$10B+
Lost annually to online scams
Free
Nudge costs nothing, forever
Protection shouldn’t have a paywall.
Read our story →
How it works

Three seconds.
Full picture.

Nudge runs silently in the background. The moment you land on a page, it's already working.

01
You visit any website
Nudge instantly checks the domain against our 1.1 Million+ verified domain database and community signals from our network of users.
02
AI scores the page
For unknown sites, our AI analyzes the content, payment fields, seller signals, and scam patterns to generate a trust score from 0–100.
03
You see the verdict
A badge appears showing green (safe), amber (caution), or red (danger) — with a plain-English explanation and safe alternatives if needed.
What Nudge does

Protection that
actually works.

Not a blocklist. Not a filter. Real intelligence on every page, in real time.

🛡️
Trust score on every page
Every site gets a score from 0–100. Established retailers, unknown sellers, marketplace listings — all scored with context-specific reasoning you can actually understand.

Marketplaces like eBay and Facebook show individual seller reputation. Retailers like Walmart show once per session, silently verified.
N
Seller verified
MorningWoodJeans · eBay
Trust Score 90/100
Seller has 2,576 reviews · 99.5% positive — established eBay seller.
🛡️ Nudge verified — safe to shop here:
eBay Money Back Guarantee — buyer protection on every listing
SHOP NOW →
📧
Email verification
Every email in Gmail and Outlook gets a verification banner — green for legitimate, amber for caution, red for phishing. Sender domain checked against 1.1 Million+ trusted domains.
🔄
Safe redirect suggestions
Flagged a scam site? Nudge suggests the most relevant trusted alternative — whether that's Amazon, Zillow, Redfin, or the official brand site.
🏷️
Deals and discounts
On verified retailer sites, Nudge surfaces the best available loyalty programs, promo codes, and discount opportunities — automatically. 89 merchants and counting.
📰
News source credibility
Reading an article? Nudge tells you whether the source is in our verified publisher list or unestablished — so you know what to trust before you share.
Privacy first

Your data stays
yours.

Nudge is built on a simple principle: protect you without watching you.

🔒
Local by default
Your browsing history, purchase data, and site scores are stored only on your device. Never on our servers. Never sold.
👤
Anonymous signals
When you opt in to community signals, we share only anonymous domain visit counts — no URLs, no personal identifiers, no searches.
🚫
Zero ads. Ever.
Nudge earns through affiliate partnerships when we help you shop safely — not by selling your attention or data to advertisers.
Free forever

Start protecting yourself today.

Install Nudge in seconds. No account. No subscription. Works the moment it's installed.

Chrome · Firefox · Android via Firefox · No signup required